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History of radio. The early history of radio is the history of technology that produces and uses radio instruments that use radio waves. Within the timeline of radio, many people contributed theory and inventions in what became radio. Radio development began as "wireless telegraphy". Later radio history increasingly involves matters of ...
Audio broadcasting (1915 to 1950s) 1919: First clear transmission of human speech, (on 9XM) after experiments with voice (1918) and music (1917). 1920: Regular wireless broadcasts for entertainment began in Argentina, pioneered by the group around Enrique Telémaco Susini. 1920: Spark-gap telegraphy stopped.
A French ship-to-shore radio station in 1904. The invention of radio communication was preceded by many decades of establishing theoretical underpinnings, discovery and experimental investigation of radio waves, and engineering and technical developments related to their transmission and detection. These developments allowed Guglielmo Marconi ...
Hijo de la Luna. " Hijo de la Luna " (English: "Son of the Moon") is a song written by José María Cano performed originally by the Spanish band Mecano with lead singer Ana Torroja. It appeared on their 1986 album, Entre el cielo y el suelo, and had great success all over the Spanish-speaking world, as did the album.
Radio astronomy. The Karl G. Jansky Very Large Array, a radio interferometer in New Mexico, United States. Radio astronomy is a subfield of astronomy that studies celestial objects at radio frequencies. The first detection of radio waves from an astronomical object was in 1933, when Karl Jansky at Bell Telephone Laboratories reported radiation ...
Arecibo Observatory. The Arecibo Observatory, also known as the National Astronomy and Ionosphere Center (NAIC) and formerly known as the Arecibo Ionosphere Observatory, is an observatory in Barrio Esperanza, Arecibo, Puerto Rico owned by the US National Science Foundation (NSF). The observatory's main instrument was the Arecibo Telescope, a ...
October 6, 2024 at 7:07 PM. By James Oliphant and David Shepardson. (Reuters) - Republican U.S. presidential candidate Donald Trump on Sunday said he would slap tariffs as high as 200% on vehicles ...
Emilio de Gogorza was born in Brooklyn, New York, and brought up and trained musically in Spain. He returned to the USA in his early 20s. He sang in many languages, including French, Italian and English, as well as Spanish. Owing to pronounced near-sightedness, he did not appear on the operatic stage but became a renowned concert and recital ...